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Rock Bass


Rock Bass

Rock bass are an introduced species in Washington, having been established in the Chehalis River drainage and other waters after being stocked by the United States Fish Commission starting in 1889.

Scientific Name: Ambloplites rupestris

Also known as redeye


Physical Characteristics:
  • These fish are relatively small, averaging 8-10 inches, and are easily identified by their bright red eyes, large mouth, and dark spots arranged in horizontal rows along their scales.
  • Rock bass have a brownish-green coloration that can change slightly for camouflage.

What to know

Habitat Distribution

  • In Washington, they're found in lowland lakes, preferring clear, well-vegetated waters with rocky or sandy bottoms near structure.
  • They inhabit depths of 1.2 to 12+ feet and avoid fast-moving water.

Key Locations

  • American Lake, Lake Washington, Lake Tapps, Lake Sammamish, and other lowland lakes.
  • In lakes like American Lake, Lake Washington, and Lake Tapps, focus on areas with good vegetation and rocky structure.

Specific Spots

  • Fish around structure including submerged logs, rock piles, weed beds, brush piles, beaver dams, grass mats, and rocky terrain where they ambush prey.

Rock Bass FAQ

Answers from onWater's species guide.

What are the best lures and bait for Rock Bass in Washington?

small jigs, spinnerbaits, chatterbaits, small crankbaits, soft plastic grubs, wax worms, nightcrawlers, and small minnows.

When is the best time to fish for Rock Bass in Washington?

The best time to fish for rock bass in Washington is late spring through early fall, avoiding the April-June spawning period when they're territorial and not feeding actively. In winter, they school in deeper water but can still be caught with patient, slow presentations.

How do you catch Rock Bass in Washington?

Present baits near the bottom around cover, as they're primarily bottom-oriented feeders. During overcast days or low-light conditions, they may move shallower and become more aggressive. In winter, they school in deeper water but can still be caught with patient, slow presentations.

What do Rock Bass eat?

Rock bass are opportunistic feeders with a diverse diet including aquatic insects, small crustaceans like crayfish, smaller fish (including their own young), plants, and zooplankton.

Where do Rock Bass live in Washington?

In Washington, they're found in lowland lakes, preferring clear, well-vegetated waters with rocky or sandy bottoms near structure. They inhabit depths of 1.2 to 12+ feet and avoid fast-moving water.

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